package com.study.command;

/**
 * @Author tanglingyu
 * @Date: 2021/05/24/ 14:16
 * @Description
 */
public class TVReceiver {

  public void on() {
    System.out.println("电视机打开了...");
  }

  public void off() {
    System.out.println("电视机关闭了...");
  }
}
